Homework Help - October 2006

Can anyone help with this problem? Thanks.

One Calorie in nutrition is 1 kilocalorie, which we define in Chapter 11 as 1 kcal = 4,186 J. Metabolizing 1 gram of fat can release 9.00 kcal. A student decides to try to lose weight by exercising. She plans to run up and down the stairs in a football stadium as fast as she can and as many times as necessary.

To evaluate the program, suppose she runs up a flight of 65 steps, each 0.150 m high, in 72.0 s. For simplicity, ignore the energy she uses in coming down (which is small). Assume that a typical efficiency for human muscles is 20.0%. This means that when your body converts 100 J from metabolizing fat, 20 J goes into doing mechanical work (here, climbing stairs). The remainder goes into internal energy. Assume the student's mass is 65.0 kg.

(a) How many times must she run the flight of stairs to lose 1 pound of fat?

(b) What is her average power output, in watts and in horsepower, as she is running up the stairs?

2006-10-11 16:31:21 · 1 answers · asked by Chris S. 1

i just need another word for easy-going or i can find a word if i know what exactly easy-going means

2006-10-11 16:29:30 · 9 answers · asked by Anonymous

Why is the qoutient of a number divided by itself one? What is the exception to the rule?

2006-10-11 16:29:27 · 2 answers · asked by Anonymous

2006-10-11 16:29:24 · 8 answers · asked by Carmen O 1

and contributions of his voyage?

2006-10-11 16:28:44 · 6 answers · asked by lalalala13 2

I am a junior in college and I have a huge history test and paper due tomorrow. I took my paper to be proof read today, and the woman was an idiot. The paper concerns early American diplomacy, but I really just need gramatical help. The paper is about three and a half pages. PLEASE! If you could give me your email address, I will be forever indebted!

2006-10-11 16:23:59 · 6 answers · asked by good golly! 3

these are ratios in simplest forms

2006-10-11 16:23:44 · 2 answers · asked by Anonymous

Seven people, Alan, Betty, Charlene, Daryl, Evelyn, Frank, and Garth, met at a convention to trade coins. Each trade that took place was between only two people. at the end of the convention, Alan asked each of the others how many people she/he had traded with. Each answered with a different number. How many people had Alan Traded with?

2006-10-11 16:17:37 · 1 answers · asked by Anonymous

2006-10-11 16:05:12 · 2 answers · asked by Anonymous

2006-10-11 15:57:12 · 13 answers · asked by veronica c 1

If anyone can help me out with this I would really appreciate it :) I am stuck on this problem.

A 2.00 kg block situated on a rough incline is connected to a spring of negligible mass having a spring constant of 100 N/m (see the figure that I linked below). The block is released from rest when the spring is unstretched, and the pulley is frictionless. The block moves 19.0 cm down the incline before coming to rest. Find the coefficient of kinetic friction between the block and incline.

http://www.webassign.net/sf/p5_76.gif

2006-10-11 15:56:33 · 1 answers · asked by Michelle 1

from a bag of candy, bob gave 1/2 of the candy to a friend. of the remaining candy he gave 1/3 to his sister. he then gave 1/2 of the candy remaining in the bag to his brother.

2006-10-11 15:44:45 · 12 answers · asked by blacberri30 1

2006-10-11 15:41:49 · 9 answers · asked by Anonymous

I have no problem HELPING with their homework, but most questions expect us to do all the work.

2006-10-11 15:40:43 · 17 answers · asked by Grundoon 7

9 pieces of ribbon each 1/8 inches long, are cut from a roll of trim 100 inches long.

2006-10-11 15:39:23 · 8 answers · asked by blacberri30 1

Write the equation of the lines passing through each of the given points. Write your results in slope-intercept form, where possible.
(-1, 3) and (4,-2)

24. (2,-3) and (2, 4)

36. Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0,-3) and is parallel to the line with equation

40. L has y-intercept (0, 2) and is perpendicular to the line with equation 2x-3y=6

2006-10-11 15:36:39 · 2 answers · asked by Felton T 1

I don't really get how quantum numbers work...
I know that N is the energy level,
L is either 0,1,2,3 depending on the spdf
but how do I get ml and ms?
Thanks so much!

2006-10-11 15:35:31 · 1 answers · asked by flamicogirl 1

they give u a bar graph that says

week 1 10 members attence that meeting
week 2 11
week 3 9
week 4 8
week 5 10


The graph abouve shows attendance of memer at meetings of a garden club over 5 weeks. All but 2 members of the club attended the meeting in the first week and no members joined or left the club over the 5 week period. What fraction of the members attended the meeting in 4th week?

First of all I don't understand the question then "what fraction of the members attended the me. in 4th week" what does that means? 4th week to what? the whole 5 weeks?

2006-10-11 15:31:52 · 10 answers · asked by Boptimistic!!! 1

2006-10-11 15:17:30 · 2 answers · asked by ? 1

Which soda do u drink more?please pick either Coke, Diet, Lemon,or none?
How many weekly?
PLEASE DONT STOP ANSWERING I NEED AT LEST 50 ANSWERS

2006-10-11 15:17:03 · 17 answers · asked by Anonymous

Express you opinion and indicatewhy you feel as you do about the President

2006-10-11 15:16:25 · 19 answers · asked by miss_aries14 1

2006-10-11 15:08:06 · 2 answers · asked by Mrs. M 5

2006-10-11 14:59:39 · 2 answers · asked by glue 2

Where can i go look for the chicago criminal archives, i need to find a famous prostitution related crime of the early chicago.... thanx!!! =]

2006-10-11 14:58:45 · 3 answers · asked by Yesenia R 2

2006-10-11 14:54:42 · 3 answers · asked by Karyna B 1

2006-10-11 14:52:56 · 3 answers · asked by pinkapv 1

Question : The 4-digit number 2,_ _ 5 is a product of a number and itself. What are the two missing digits? ( I think the the answer is 2,105. Would like to know if this is right.

2006-10-11 14:34:27 · 7 answers · asked by needtofly 2

2006-10-11 14:33:32 · 2 answers · asked by joe 1

science fair

2006-10-11 14:32:01 · 5 answers · asked by tahirah8 2

2006-10-11 14:29:30 · 19 answers · asked by jdminnard 1